To find 1/8 divided 3/5 we use reciprocal of

Can you me find the missing length. i attached an image.

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )

What are the solutions of the equation x4 + 6x2 + 5 = 0? use u substitution to solve.